Solid oral forms of application containing ifosfamide as active substance
CA 2048367 C · Owner: Molge, Klaus · Inventors: Isaac, Otto; Sauerbier, Dieter; Engel, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Solid oral ifosfamide formulations are disclosed where the capsule mass substantially consists of the active substance ifosfamide and microcrystalline cellulase or in, the form of tablets which contain in relation to one part, by weight of ifosfamide 0.1 - 1.0 parts by weight of, tricalcium phosphate and 0.04 - 0.4 parts by weight of, polyethylene glycol as well as in addition related to the, weight of the tablet 5 - 60 % by weight of a filling and flow regulating agent, 1 - 10 % by weight of a disintegrant 0.1 - 10 % by weight of an antiadhesion agent and 0.1 - 80%, by weight of a binding agent.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed August 2, 1991 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 2, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.